Home / 21,313.77-29,413.04-11,882.13

Finding the Fourth Proportional to 21,313.77, 29,413.04 and 11,882.13

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Solution

The fourth proportional to 21,313.77, 29,413.04 and 11,882.13 is: 16,397.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.77 : 29,413.04 = 11,882.13 : x
  2. Step 2: Convert to fraction form
    21,313.77/29,413.04 = 11,882.13/x
  3. Step 3: Cross multiply
    21,313.77x = 29,413.04 × 11,882.13
  4. Step 4: Simplify right side
    21,313.77x = 349,489,564.98
  5. Step 5: Solve for x
    x = 349,489,564.98/21,313.77
  6. Step 6: Final answer
    x = 16,397.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.